JP3566348B2 - A method and an apparatus for collecting and granulating a waste resin molded product, and a method for manufacturing a wooden synthetic board using the collected resin material. - Google Patents

Description

【００８１】
以上の製品としての成形板２９である木質合成板 Ｗ：９１０ｍｍ、Ｈ：１２ｍｍを鋸盤により１８２０ｍｍ毎に切断し、重量１８ｋｇのベージュ色のコクリートパネルとして用いる木質合成板を得た。なお、肉厚１０〜１２ｍｍ程度の木質合成板は、車両用内外装の板、机やテーブル、食器棚等の家具材料など他の用途にも使用される。
【００８２】
なお、成形ダイ１０の高さを２０〜３０ｍｍとすることによって、肉厚２０〜３０ｍｍの木質合成板が成形され、この木質合成板は床板や他の用途の板材として使用される。したがって、成形される木質合成板の肉厚は上記の実施例に限定されない。
【００８３】
【表２】

【００８４】
以上の製品としての成形板２９である木質合成板 Ｗ：９１０ｍｍ、Ｈ：３ｍｍをシャーリングにより１８２０ｍｍ毎に切断し、重量４．５ｋｇの木質合成板を得る。
【００８５】
このような薄板は、各種建築材料、家具材料、機器パーツ等として広範囲な使用目的に向けた素材となる。例えば、上記の薄板の木質合成板は、家屋の室内装飾用の化粧板などの建築材として使用され、あるいは約３００ｍｍ四方の大きさに加工してフロアリングブロックなどの床材として使用される。さらに、他の用途として、自動車の車内の内装材として、例えば、運転席のメータパネル周りの化粧板、トランスミッション周囲の化粧板、その他の車内の壁面の化粧板として使用され、高級感を得ることができる。機器パーツとしては電気機器等のボックスパネルや他の機器の化粧板として使用される。
【００８６】
尚、用途により剛性が必要のないときは、前掲バージンの硬質ＰＶＣの混入添加は不要である。
【００８７】
【発明の効果】
本発明は、以上説明したように構成されているので、以下に記載されるような効果を奏する。
【００８８】
比較的簡単かつ容易な手段により、衝撃摩砕力のみで処理対象の樹脂成形品としての廃農フィルムから、農薬、泥、土、砂、金属、農産物（葉、茎等）、ガラスの破片、ゴミ等の付着物を分離かつ除去し、かつこれを所定の粒径範囲内に整粒され素材化された樹脂材料として効率良く・造粒し、再利用し得るようにした。
【００８９】
したがって、従来、行われていた廃農フィルムの水洗浄処理に要した大量の水及び乾燥処理における多大な設備を不要とし、省資源に寄与することができた。
【００９０】
特に、水洗浄の廃水による河川の汚染を防止することができ、廃水の浄化処理の設備及び運転費のコストを省くことが可能となった。
【００９１】
押出し生地を、内壁面にフッ素樹脂のシートを貼設又はフッ素樹脂をコーティングした成形ダイの成形部へ押出して所定の肉厚に成形し且つ前記成形部で冷却したので、フッ素樹脂は熱伝導係数が低いため徐冷効果があり、その結果、押出し生地が冷却するときに生じる歪みを少なくすることができた。したがって、成形板を補正ロール等で歪みを矯正するなどの矯正を必要としない内部残留応力が少ない高品質の木質合成板を成形することができた。
【００９２】
成形ダイより押出された成形板に、成形板の押出し力に抗する抑制力を加えて成形ダイの成形部内の押出し生地の密度を高くしたので、より一層密度が均一で高密度の木質合成板を押出成形することができた。
【図面の簡単な説明】
【図１】この発明の処理対象の一例である廃農フィルムの回収・造粒方法の基本的な第１の実施例方法を適用した場合の概要を原理的かつ模式的に示す処理工程の系統説明図である。
【図２】本発明の実施例に使用するカッタミル（破砕手段）の要部を示す全体斜視図である。
【図３】同上実施例方法に用いられる研磨・整粒装置の概要構成を模式的に示す縦断面図である。
【図４】図３における研磨・整粒作用を説明するための正面図である。
【図５】本発明の実施例に使用する押出機の要部断面を示す全体正面図である。
【図６】本発明の実施例の成形ダイの縦断面を示す正面図である。
【図７】本発明の実施例の成形ダイの要部断面を示す平面図である。
【図８】本発明の実施例のブレーキ手段の要部断面を示す平面図である。
【図９】図８の矢視Ｎ−Ｎ線の縦断面図である。
【符号の説明】
１０ 成形ダイ
１１ 導入部
１２ 導入孔
１３ 導入室
１４ ヒータ
１５ 案内板
１６ スクリーン部
１７ アダプタ
１８ 流入口
１９ 押出ダイ
２１ 成形部
２２ 成形室
２３ ダイ出口
２４ シート（フッ素樹脂の）
２５ 冷却管
２９ 成形板
３０ ブレーキ手段
３１ａ 固定ピンチローラ
３１ｂ 自在ピンチローラ
３４，３４ａ，３４ｂ 軸受
３６ 軸受固定フレーム
７０ 押出機
７１ スクリュー
７２ ギヤ減速機
７３ ホッパ
７４ バレル
７５ バンドヒータ
７６ スクリーン
７７ アダプタ
７８ 押出ダイ
７９ 押出し生地
８１ 破砕片
８２ 被処理小片
１１０ クラッシャ
１１４ フレーム
１１５ パウダブレーキ
１１６ 歯車
１１７ 歯車
１１８ シリンダ
１１９ ガイド体
１２０ カッタミル
１２１ カッタミル本体
１２２ 蓋
１２３ 投入口
１２４ カッタ支持体
１２５ 回転刃
１２６ 固定刃
１２７ 投入室
１２８ 粗砕室
１２９ スクリーン
１３０ 研磨・整粒装置（ピンミル）
１３１ 固定円盤
１３２ 供給投入口
１３３ 固定端板
１３４ 固定ピン
１３５ 周側板
１４１ 可動円盤
１４２ 回転横軸
１４３ 軸受
１４４ 可動ピン
１５１ 篩網
１５２ 排出口
１５３ 取出口
１５４ プラグバルブ
１５５ 研磨・整粒空間
１５６ 排出空間
１５８ ブロワー[0001]
[Industrial applications]
The present invention relates to a method and an apparatus for collecting and granulating a waste resin molded product, and a method for manufacturing a wooden synthetic board using the collected resin material.
[0002]
Specifically, as an application field of the present invention, waste plastic film used in agriculture, for example, polyvinyl chloride, polyethylene, polyvinyl acetate, so-called facility horticulture such as polyolefin, greenhouses in agriculture and other agricultural products for cultivation. A film or sheet made of a thermoplastic resin that is used for covering a seed or a seedling and that forms a used film or sheet that has been used and discarded for another use (in the present specification, “waste agricultural film” This waste resin molded product is roughly crushed or crushed in a broad sense into a plurality of pieces to be treated, and rainwater, dew, agricultural chemicals, and mud attached to the film or sheet of each piece to be treated. Separation and removal of deposits such as soil, sand, grass roots, metals, agricultural products (leaves, stems, etc.), glass fragments, garbage, etc. It recovered, and a method of granulating a fee. At the same time, the collected resin material is sized, and the collected and granulated material is collected and granulated as a sized resin material as a sized product within a predetermined particle size range. The present invention relates to a method for molding a resin material as it is, or a method for forming a pellet so that it can be reused, an apparatus for performing these methods, and a method for producing a wood composite board using the recovered resin material. Things.
[0003]
[Prior art]
Conventionally, a film made of polyvinyl chloride (soft PVC) or polyethylene or a sheet made of a resin such as polycarbonate (PC), which forms a waste agricultural film which is a waste resin molded product of this kind, is removed from the frame due to aging or storms due to use. Due to the falling off, pesticides, mud, soil, sand, metal, agricultural products (leaves, stems, etc.), glass fragments, garbage, and other deposits are attached, and they are sequentially replaced to lose transparency. These are replaced or discarded The waste agriculture film collected for washing was washed with water, dried, finely pulverized, blow-molded, etc., and formed and reused as a substitute for wood piles.
[0004]
In addition, the waste agriculture film has excellent characteristics such as water resistance, weather resistance, and decay resistance.However, for example, when incinerated by an incinerator for disposal, a large amount of harmful gas or smoke is discharged. It is well known that the occurrence of unfavorable social environment. In addition, there is a disadvantage that the resin material melted during incineration may adhere to the inside of the furnace and damage the furnace itself. Therefore, even if a resin molded product is buried underground to avoid this disadvantage, it remains without decay for a long period of time, and is considered to be a cause of environmental destruction.
[0005]
On the other hand, with respect to this kind of resin material, there is a tendency for resources to be depleted year by year, and it has been requested and recognized that a used resin material is reused without being discarded.
[0006]
[Problems to be solved by the invention]
Conventionally, waste agriculture film has been subjected to a regeneration treatment by washing the adhered substance on the surface with water, but this treatment requires a washing step and a drying step that require a large amount of water. There is a problem that a large amount of equipment is required for the drying treatment, and water resources and energy resources are wasted.
[0007]
In particular, the waste agricultural film usually has pesticides attached thereto, but even if the film or sheet is washed with water and washed, the cleaning liquid containing the pesticide must contaminate rivers and the like, so that it must be purified. If wastewater could not be discharged, the purification equipment and operating costs would be expensive, and most of the waste agricultural films were discarded without being reused.
[0008]
〔Purpose〕
The present invention has been developed in order to solve the above-mentioned problems, and by relatively simple and easy means, from waste agricultural film as a resin molded article to be treated, pesticides, mud, soil, sand, metal Separation and removal of deposits such as agricultural products (leaves, stems, etc.), glass shards, dust, etc., and efficiently granulating them as a resin material sized and made into a material with a predetermined particle size range It is an object of the present invention to provide a method and apparatus for recovering and granulating so that it can be reused, and a method for manufacturing a wooden synthetic board using the recovered resin material.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, in the method for collecting and granulating a waste resin molded article of the present invention, a method for separating adhered substances from the waste resin molded article and recovering the resin material, the waste agricultural film, A process of subjecting the waste agricultural film to a plurality of small pieces to be treated,
Said relative granulated by individual fragments to be processed by adding a collision撃摩striking force, the resin material integer with the comminuted deposits adhering to the fragments to be processed is separated into a deposit resin material At least a step of forming a recovered resin material that has been made into a material by granulation,
Prior to the crushing step,
This is a method including at least a step of crushing the waste agricultural film into a plurality of crushed pieces. An impact milling force is applied to each of the coarsely crushed small pieces to be treated, and fine particles of the adhered matter adhering to the small pieces to be treated are separated into resin material and adhered matter, and the resin material is sized. The process of forming the recovered resin material into a material can be repeated a plurality of times.
[0010]
In the waste resin molded product collection and granulation apparatus of the present invention,
Crushing means for crushing the waste agricultural film into a plurality of small pieces to be treated,
Fixed side separation, classification, and sizing means on a fixed disk having a central portion communicating with the supply inlet of the small piece to be processed, and sequentially mounting each fixed pin on a plurality of rotation trajectories,
Movable side separation / classification / granulation means on a movable disk provided rotatably opposed to the fixed disk, wherein each movable pin is sequentially implanted on a plurality of rotation trajectories different from each of the fixed pins. When,
Classification means, which is provided on the outer periphery of the combination of each fixed pin and each movable pin, and communicates with a discharge port for arbitrarily discharging deposits separated to a desired particle size or less, and a discharge port for collecting a collected resin material having a desired particle size or more Extraction means for extracting
Separation, classification and sizing means configured to separate and classify the resin material and the attached matter by the impact grinding force between the fixed pins and the movable pins, and to size the resin material. It is characterized by the following. further,
In addition to the above configuration,
A crushing means for crushing a waste agricultural film to be processed into a plurality of crushed pieces first is added.
[0011]
The discharge port and the supply port can be communicated with each other so that the small pieces to be processed discharged to the discharge port are returned to the supply port.
[0012]
Further, in the method for producing a wooden synthetic board using the recovered resin material of the present invention,
25-80 wt% of the recovered resin material is mixed with 20-75 wt% of a cellulose-based crushed material having an average particle size of 20 mesh or less, preferably 60-150 mesh, with a water content of 15 wt% or less, and heating and kneading. Then, the extruded fabric is extruded into a molding die with a screw and extruded into a molding portion of a molding die in which a fluororesin sheet is stuck on an inner wall surface or coated with a fluororesin, and molded into a predetermined thickness and the extruded fabric is formed by the molding portion. The extrusion is performed by gradually cooling, and the density of the extruded material in the molding section is increased by adding a suppressing force against the extrusion force of the molded plate. The formulation example is preferably
With respect to 25 to 80 wt% of the recovered resin material, 20 to 75 wt% of a cellulosic crushed product having an average water content of 15 wt% or less and an average particle size of 20 mesh or less without adding a plasticizer, mixing, heating and kneading. Can be achieved. Also,
The recovered resin material is 20 to 40% by weight, preferably 25 to 30% by weight of soft vinyl chloride, and virgin hard vinyl chloride is 10 to 30% by weight, preferably 15 to 20% by weight, and the water content is within 15% by weight, preferably, Wood powder of 40 to 60 wt%, preferably 45 to 50 wt% can be mixed with 3 to 5 wt% and an average particle size of 80 mesh or less.
[0013]
Further, the recovered resin material is made of polyethylene and has a water content of 15 wt% or less, preferably 3 to 5 wt%, and wood powder of 40 to 60 wt%, preferably 45 to 50 wt%, having an average particle size of 150 mesh or less. Can be mixed by 10 to 60 wt%, preferably 45 to 50 wt%.
[0014]
[Action]
The waste agricultural film is crushed into a plurality of crushed pieces by crushing means, and the crushed crushed pieces, or the waste agricultural film is directly crushed into a plurality of small pieces to be treated by the crushing means, and then the plurality of pieces are processed. By supplying each of the small pieces to be processed one or more times from the supply inlet of the separation / classification / granulation means, the resin material is pulverized by the impact grinding force between each fixed pin and each movable pin. In addition to granulating and polishing and sizing, deposits having a desired particle size or less can be separated, arbitrarily divided and discharged to an outlet, and a recovered resin material having a desired particle size or more can be taken out from an outlet.
[0015]
With respect to the recovered resin material of 25 to 80 wt%, the content of water is within 15 wt% and the crushed cellulosic material having an average particle size of 20 mesh or less is heated and kneaded by an extruder, and is kneaded with a dough extruded from a discharge port by a screw. And extruded into the inlet of the forming die.
[0016]
First, the extruded dough is extruded into the molding chamber of the molding section while being heated and kept warm in the introduction section to maintain fluidity and maintain a good kneading state. Since the inner wall surface of the molding chamber is coated with a fluororesin sheet with a small coefficient of friction or coated with a fluororesin, the cellulosic crushed material in the extruded fabric passing through the inner wall surface smoothly without receiving a large resistance. Since it flows, it is extruded at a relatively low temperature while maintaining a uniform and high-density kneading state. In the process of being extruded in the molding chamber, the extruded dough is cooled to form a molded plate. Since the fluororesin has a lower coefficient of thermal conductivity than metal, the extruded fabric is gradually cooled, the distortion due to cooling is reduced, and a wood composite plate is formed as a uniform and high-density product with less distortion.
[0017]
Further, a braking force is applied to the pushing force applied to the formed plate by the extruder by the brake means, and a drag force against the pushed force is applied to the extruded material in the forming chamber via the formed plate. For example, by pressing a friction body against a brake drum provided at one shaft end of a pair of pinch rollers for holding and pressing the front and back surfaces of the formed plate, the rotation of the brake drum is suppressed, and the formed plate is extruded. The rotation of the pinch roller, which is rotated by the force, is suppressed, and the pinch roller applies a suppressing force against the pushing force to the forming plate.
[0018]
Then, the above-mentioned restraining force gives the extruded dough in the forming section and the introduction section via the forming plate a resistance against the extruding force of the extruded dough in the forming chamber applied by the extruder, so that the whole of the extruded dough in the forming chamber is However, the density becomes more uniform and higher. Therefore, a more uniform and high-density woody synthetic board containing a large amount of cellulosic crushed material is formed by the waste agricultural film.
[0019]
【Example】
Embodiments will be described with reference to the drawings.
[0020]
Example of resin material processing method and apparatus (target waste resin molded product)
The target waste resin molded product is a used waste agricultural film made of polyvinyl chloride (PVC; soft) or the like, and the surface of the waste agricultural film has pesticides, mud, soil, sand, metal, agricultural products (leaves and stems). Etc.), glass fragments, dust and other deposits are attached. When the used waste agricultural film is discarded or collected by a trader, there is a possibility that the waste agricultural film may be wound into a roll, but most of the waste agricultural film is in a large lump that is rounded to a shaggy shape.
[0021]
Hereinafter, means for recovering a resin material such as soft PVC from the waste agricultural film mass will be described.
[0022]
Processing method As shown in FIG. 1, the method includes a [crushing step], a [crushing step], and a [separation, classification, sizing step].
[0023]
Process 1 [crushing process]
The soft PVC film of the discarded agricultural greenhouse is cut into pieces of an appropriate size using the crushing means 110 as shown in FIG. 1 or crushed in a broad sense, for example, crushing of about 15 × 50 mm in size. A piece 81 is formed.
[0024]
(Crushing means)
The crushing means crushes the material to be crushed to form crushed pieces of an appropriate size, and in this embodiment, is referred to as a "crusher" for convenience.
[0025]
FIG. 1 shows an example of the “crusher”. The crusher 110 is provided with two axes rotating inwardly in parallel in a crusher main body having an input port for crushed material at an upper part, and a plurality of rotary blades provided on each axis at a predetermined interval. In order to cut a lump of waste agricultural film collected by three claw blades that are meshed with each other on the outer periphery of the rotating blade and project from the outer peripheral surface of each rotating blade so as to form an equal angle, into crushed pieces composed of appropriately large pieces. Is provided.
[0026]
A lump of abandoned agricultural film made of a soft PVC film of an agricultural plastic greenhouse, which is a waste resin molded product introduced from the upper inlet, is drawn into the interior by claw blades of two-axis rotary blades rotating inwardly to each other. The crushed piece 81 is formed by being crushed and cut by the compressive force acting at the time of retraction while being slit by the continuously acting shear force between the outer peripheral edges of the rotating blades rotating in a meshed state. The crushed pieces 81 are discharged from a discharge port provided below the biaxial rotary blade. At this time, the above-mentioned deposits such as pesticides and mud are attached to the surface of each crushed piece 81 and have a substantially black color.
[0027]
The crushing means is not limited to the crusher described above. For example, crushing means such as various mono-cutters, shredders, crushers, etc., such as Gainax crusher manufactured by Horai Co., Ltd. or roll crusher manufactured by Nara Machinery Co., Ltd. Can be used.
[0028]
Process 2 [Coarse crushing process]
The crushed piece 81 formed in a size of about 15 × 50 mm by the crushing means in the above-described step 1 [crushing step] is further finely cut, or in a broad sense, using a crushing means as shown in FIG. By crushing, small pieces 82 to be processed having a size of, for example, a rectangle of about 2 × 15 mm, a square of about 10 × 10 mm or other irregular shape, each side of which is about 10 mm or less are formed. At this time as well, as in the above-described step 1 [crushing step], the above-mentioned deposits such as pesticides and mud are attached to the surfaces of the small pieces 82 to be processed.
[0029]
(Crushing means)
The crushing means cuts and crushes the crushed pieces 81 to form small pieces to be processed 82 of an appropriate size. In this embodiment, the crushing means is referred to as a "cutter mill" for convenience.
[0030]
FIG. 2 shows a cutter mill 120 which is an example of the crushing means.
[0031]
Reference numeral 121 denotes a cutter mill body, which is a cylindrical casing having an upper surface opening, and the opening is covered with a lid 122 which can be freely opened and closed. The lid 122 has an inlet 123 into which the crushed pieces 81 to be crushed are introduced into the cutter mill main body 121.
[0032]
Further, a cutter support 124 is provided in the cutter mill main body 121, which is rotatably supported on the bottom surface of the cutter mill main body 121 and is rotated in a horizontal direction by rotation driving means (not shown). Three blades 125 are provided, and these three rotary blades 125 are disposed so as to form an equal angle of 120 degrees in the rotation direction of the cutter support 124, and the cutting edges of the three rotary blades 125 have the same rotation locus. Located on top. Further, the two fixed blades 126 are fixed to the cutter mill body 121 at a position substantially symmetrical to the rotation locus of the cutting edge of the rotary blade 125 through a slight gap with respect to the rotation locus of the cutting edge of the three rotary blades 125. The inside of the cutter mill body 121 is bisected by the fixed blade 126, the cutter support member 124, and the rotary blade 125 to form a charging chamber 127 and a crushing chamber 128. The input port 123 of the lid 122 communicates with the input chamber 127. The clearance between the second fixed blade 126 and the rotary blade 125 can be freely adjusted so that the material to be crushed can be cut into a desired size or crushed in a broad sense. The clearance of this embodiment is 0.2 to 0.3 mm. The crushing chamber 128 is partitioned by the mesh screen 129 so as to surround the periphery of the rotation locus of the rotary blade 125 between the two fixed blades 126. In this embodiment, the screen 129 is formed of a mesh through which a small piece 82 having a side of about 10 mm can pass. Further, a discharge port for discharging the small piece to be processed 82 is provided at a lower end of the cutter mill main body 121 of the crushing chamber 128.
[0033]
In the above-mentioned cutter mill 120, the crushed pieces 81 having a size of about 15 × 50 mm formed by the crusher 110 in the above-mentioned step 1 [crushing step] are introduced from the inlet 123 of the lid 122, and the cutter is driven by a rotation driving means (not shown). When the support 124 is rotated, the crushed pieces 81 are indeterminate in shape and area through the screen 129 between the rotary blade 125 and the fixed blade 126 of the cutter support 124, but almost all of the crushed pieces 81 are rectangular or approximately 2 × 15 mm. A small or irregular shaped piece 82 having a size of about 10 × 10 mm or less and a side of about 10 mm or less is formed and discharged from the discharge port to the next process.
[0034]
The crushing means is not limited to the above-mentioned cutter mill. For example, like a hard crusher manufactured by Horai Co., Ltd., the rotating shaft of the rotating blade 125 is provided in the horizontal direction, and Some screens 129 are provided below. At this point, the above-mentioned deposits such as pesticides and mud are slightly dropped on the surface of each crushed piece 81, but they are almost opaque and light black.
[0035]
Process 3 [separation, classification, sizing process]
In the crushing means in the above-mentioned step 2 [crushing step], each side is formed in a rectangular or irregular size of about 10 mm or less, and pesticides, mud, soil, sand, metal, agricultural products (leaves and stems), An impact grinding force is applied to each of the small pieces 82 to be treated of the soft PVC film on the surface of which glass fragments, dust, etc. are adhered, and crushed into a rectangular or irregular shape having a side of 1 to 2 mm or less. The resin material is granulated and polished from each of the small pieces 82 to a size of about 1 mm in diameter and about 10 mm in length, or a rectangular or cylindrical shape having a side of about 2 to 5 mm or other irregular size. And sizing. At the same time, the attached matter is finely pulverized and separated from the surface of each of the small pieces 82 by the impact milling force, and the pulverized attached matter and the soft PVC are classified. The resin is recovered as a resin material.
[0036]
The above steps can be repeated any number of times as needed.
[0037]
(Separation, classification, and sizing)
As described above, the separation / classification / granulation means pulverizes, grinds and polishes the small pieces 82 to be treated of the soft PVC film of the waste resin molded product, and also adjusts the surface of the film with respect to the sized material of the film. This is a means for separating and classifying the attached matter from the film by finely pulverizing the attached matter and granulating or sizing the resin material from the small pieces 82 to be treated. In the present embodiment, this is referred to as a “pin mill” for convenience.
[0038]
3 and 4, a pin mill 130 has a central portion of a fixed disk 131, which is provided with a supply inlet 132 through which small pieces 82 to be processed are introduced, and a fixed end plate 133 is provided on the fixed disk 131 for polishing and sizing. The outer peripheral edges of the fixed end plate 133 are fixed to the fixed disk 131 by the peripheral side plate 135. A movable disk 141 that is driven to rotate by a rotating horizontal shaft 142 is provided in the polishing and sizing space 155, and the rotating horizontal shaft 142 is pivotally supported by bearings 143 and 143. The rotation horizontal shaft 142 is rotationally driven by a rotation driving means such as a motor (not shown).
[0039]
On the fixed disk 131, each fixed pin 134 is sequentially implanted on a plurality of concentric rotation trajectories a (relative to the movable disk 141) (FIG. 4). On the 141, movable pins 144 alternately entering on a plurality of rotation trajectories b different from the fixed pins 134 are sequentially implanted, and an impact is applied between the fixed and movable pins 134 and 144. It is positioned so that a grinding, polishing, and sizing action can be obtained by a grinding force. Further, a screen 151 having a predetermined mesh formed by punching pores having a desired diameter is provided around the outer peripheral side of the movable disk 141 and the peripheral side plate 135 with a discharge space 156 therebetween. An outlet 152 is provided. In addition, as shown in FIG. 1, a blower 157 is connected to the discharge port 152 to the pin mill 130. In this embodiment, the screen 151 is a mesh having a diameter of 1 mm, but is usually a mesh having a diameter of 1 mm or less, preferably a mesh having a diameter of 0.7 mm.
[0040]
Further, an outlet 153 is provided in the lower part of the screen 151 of the polishing and sizing space 155, and a plug valve 154 for opening and closing control is provided in the outlet 153. As shown in FIG. 1, a blower 158 for sucking air in the pin mill 130 communicates with the outlet 153, and the blower 158 communicates with the supply inlet 132.
[0041]
Therefore, in the above-described pin mill 130, when the rotating horizontal shaft 142 is rotated by the rotation driving means (not shown) to rotate the movable disk 141 and supply the small pieces 82 to be supplied to the supply inlet 132, the small pieces 82 are processed. In the center of the polishing and sizing space 155, the fixed and movable pins 134 and 144 are subjected to crushing or polishing by an impact crushing force, a sizing and centrifugal action together. Under the impact grinding force, it gradually approaches the outer periphery while being crushed or polished and sized. In this process, the attached matter such as pesticides, mud, soil, sand, metal, agricultural products (leaves and stems), glass fragments, garbage, and the like attached to the surface of the soft PVC film of each of the small pieces 82 to be processed has a side of 1 mm. The following irregular shape is finely ground, while the soft PVC film as a resin material is polished and sized to a rectangular or cylindrical shape with a diameter of about 1 mm and a length of about 10 mm, or a side of about 2 to 5 mm, or other irregular shapes. Thus, a recovered resin material is formed. During this time, some of the resin material in the small piece to be processed 82 becomes fine powder finely pulverized to a rectangular or irregular shape having a side of 1 mm or less.
[0042]
The pulverized deposit and a part of the soft PVC film in the small piece to be processed 82 pass through the screen 151 by the centrifugal action of each movable pin 144 and are classified into the discharge space 156. It is sucked and discharged to the outside via 157. This waste deposit may be mixed with the recovered resin material at the time of molding described below.
[0043]
On the other hand, the polished and sized soft PVC film sized resin material and the deposits not passing through the screen 151 remain in the screen 151, but are supplied to the outlet 153 with the plug valve 154 opened. Since the inlet 132 is communicated with the inlet 132 via the blower 158, the sized resin material taken out from the outlet 153 and the deposits not passing through the screen 151 are returned to the feed inlet 132, and the glass, Deposits such as metal are finely pulverized so that they can pass through the screen 151, and are discharged to the outside from the discharge port 152 as described above. However, although the sizing resin material of the soft PVC film is refluxed, most of the soft sizing material is not polished and sieved so as to pass through the screen 151, and most of the sizing resin material remains in the screen 151.
[0044]
The sized collected resin material is taken out from the outlet 153 by opening the plug valve 154 as the collected resin material. As this means, the recovered resin material can be scraped from the outlet 153 or a branch pipe having an outlet by branching the communication pipe between the blower 158 and the supply inlet 132 is provided. An electromagnetic valve for opening and closing the outlet and an electromagnetic valve for opening and closing the downstream side of the communication pipe are provided, and these two electromagnetic valves are provided so as to be opened and closed alternately, or a three-way electromagnetic valve is provided for both branch pipes, The downstream side of the pipe is closed by an electromagnetic valve and the outlet of the branch pipe is opened, and the outlet 152 is also closed. The blower 158 sucks the sized resin material remaining in the screen 151 and branches the pipe. Can also be collected from the outlet. In this case, the process is performed after the waste deposits and a part of the soft PVC film powder pulverized to the same degree as the deposits are discharged to the outside.
[0045]
The recovered resin material was substantially transparent or translucent colorless or pale white.
Alternatively or in addition to the blower 158, compressed air is sent into the polishing and sizing space 155 of the pin mill 130, and communicates via a pipe through a hole formed in the fixed end plate 133. Deposits of a size that cannot pass through the screen 151 may be returned to the supply inlet.
[0046]
As an example, using a test machine of the pin mill 130 having the above-described structure, 600 g of each piece 82 to be processed is put into the pin mill 130, and the movable disk 141 is rotated at 40 Hz and a rotation speed of 1900 rpm. Approximately 90 wt% of the total weight of the small piece 82 to be processed is recovered as an irregular resin material in which a diameter or a width of 1.2 mm or less and a length of about 3 to 7 mm are rounded into a substantially cylindrical shape, or a square shape is slightly twisted. The remaining about 10% by weight was crushed particles of the deposits and crushed powder of a soft PVC film as a resin material. Thus, a large amount of sized resin material could be recovered from the waste resin molded product in a short time. In order to improve the processing capability of the pin mill 130, the size of the pin mill 130 may be increased.
[0047]
When the rotational speed of the movable disk 141 is set to be low, the soft PVC film, which is the main resin of the discarded resin molded product of each of the small pieces to be processed 82, is not finely polished and sized. Attached substances such as pesticides, mud, soil, sand, metal, agricultural products (leaves and stems), glass fragments, dust and the like adhering to the surface of 82 are returned from the outlet 153 to the supply inlet 132 via the blower 158. Then, it is pulverized again by the impact attrition force and further pulverized by the polishing action, so that the soft PVC film or the like, which is a resin material of the waste agricultural film, can be polished and sized to a size larger than the mesh of the screen 151. The rotational speed of the movable disk 141 can be set to 1200 rpm, for example.
[0048]
In the above-described embodiment, the PVC film has been described as a main example. However, other resin materials, such as polyethylene and polycarbonate, can be similarly collected as a sized resin material.
[0049]
In addition, in addition to the above-described method of treating the resin material, the state of the collected waste agricultural film, for example, whether it is wound in a roll or the degree of the contamination, The resin material can be recovered by reversing the order of each step or omitting step 1.
[0050]
Molding process The recovered resin material obtained in the present invention can be directly injected into a molding machine such as an extruder to be molded into another molded product, or can be molded into a pellet in the form of a molding resin material, Alternatively, the recovered resin material and a virgin resin material of the same quality are kneaded, and for example, in the case of soft PVC, virgin hard PVC can be kneaded to form pellets, or formed into another molded product. It can also be used as a raw material for wooden synthetic boards.
[0051]
Hereinafter, means for producing a wooden synthetic board using the recovered resin material of the present invention will be described.
[0052]
The mixing capacity of each raw material is appropriately determined in accordance with various characteristics such as the desired wear resistance characteristics. However, in the present invention, a large amount is removed because the various adverse effects at the time of the above-described molding are removed. Can be mixed.
[0053]
In the case of PET, wood flour is mixed up to 60 wt% at maximum, but the mixing ratio of wood flour is preferably 20 to 55 wt%.
[0054]
When the recovered resin material is PVC, the mixing ratio of the wood powder is 30 to 60 wt%, preferably 45 to 55 wt%.
[0055]
As an example, 30 wt% of the recovered resin material, which is the soft PVC, is mixed with 19 wt% of virgin hard vinyl chloride pellets, and mixed with 51 wt% of wood powder having an average particle size of 80 mesh or less with a water content of 5 wt% or less and formed with a screw. The extruded dough extruded into the die is gradually cooled, and a suppressing force against the extruding force is applied to the extruded dough to form a woody synthetic board as a molded resin product based on wood flour using an extruder.
[0056]
The purpose of adding the hard PVC is to obtain a desired hardness, and the recovered resin material is replaced with a plasticizer. According to the method of the present invention, the plasticizer can be omitted.
[0057]
In the case where the resin material is a waste agricultural film made of polyethylene, 49 wt% of polyethylene as a recovered resin material is mixed with 51 wt% of wood powder having an average water content of 5 wt% or less and an average particle size of 150 mesh or less. Then, the extruded dough extruded to the forming die with the screw is gradually cooled, and a suppressing force against the extruding force is applied to the extruded dough to similarly form a wood composite board.
[0058]
In this case, the addition of virgin polyethylene and plasticizer is unnecessary.
[0059]
Hereinafter, a production example of a wood composite board will be described.
In FIG. 5, reference numeral 70 denotes a single-screw extruder. Generally, the extruder is usually of a screw type, and there are a single-screw extruder and a multi-screw extruder, and some have a modification or a combination thereof. Any extruder can be used in the present invention.
[0060]
In FIG. 5, reference numeral 71 denotes a screw, which is a single shaft type. The screw 71 is driven by a motor (not shown) via a gear reducer 72 and rotates in a barrel 74. The rotating screw 71 extrudes the cellulosic crushed material and the recovered resin material fed from the hopper 73 toward the front of the screw 71 while being kneaded. A band heater 75 is provided on the outer surface of the barrel 74, and the cellulosic crushed material and the resin in the barrel 74 are heated by the band heater 75, and gradually melted while being transferred forward along the groove of the screw 71 to crush the cellulosic crushed material. The material and the resin are kneaded. Then, the extruded material 79 is extruded from the extrusion die 78 of the adapter 77 to the forming die 10 via the screen 76 and the adapter 77.
[0061]
The raw materials put into the hopper 73 are a crushed cellulosic material and a recovered resin material. In particular, the particle size of the wood powder is used to improve the compatibility with the recovered resin material. In order to prevent abrasion and damage, the powder is formed into a fine powder having a size of 20 to 300 mesh, preferably 20 (below the sieve) to 150 mesh (above the sieve). The water content is set to 15 wt% or less, preferably 11 wt% or less, and ideally 3 to 5 wt% in order to eliminate the possibility of bubbles and prevent surface roughening.
[0062]
In FIG. 6, reference numeral 10 denotes a forming die, which has a shape similar to a so-called T-die forming die, and extrudes extruded material 79 discharged from an extrusion die 78 having a rectangular cross section of an extruder 70 by heating and keeping the temperature. It comprises an introduction section 11 for extruding the dough 79 while maintaining the fluidity of the dough 79, and a molding section 21 having a molding chamber 22 for molding the extruded dough 79 extruded from the introduction section 11 into a wide and plate-shaped sheet having a predetermined thickness.
[0063]
The introduction section 11 includes an introduction hole 12 and an introduction chamber 13, and extends from an extrusion die 78 having a circular section with a diameter of about 65 mm to an entrance of a molding chamber 22 having an elongated rectangular section with a width of 910 mm and a height of 12 mm. The cross section is sharply deformed. The distance from the extrusion die 78 to the entrance of the molding chamber 22 (the distance in the extrusion direction of the introduction section 11) is about 200 mm.
[0064]
Reference numeral 12 denotes an introduction hole, which is formed in the forming die 10 in the width direction of the forming die 10, and has a longitudinal section which is bulged to have an elliptical cross section as shown in FIG. The shape of the cross section is curved in the width direction of the forming die 10 as shown in FIG. 6, and both ends thereof extend to both ends in the longitudinal direction of the rectangular cross section of the entrance of the forming chamber 22, so-called coat / die. It is formed in a hanger shape and communicates with an extrusion die 78 of an extruder 70 at a substantially central position in the longitudinal direction of the introduction hole 12. In addition, a space between the introduction hole 12 and the entrance of the molding chamber 22 is communicated with an introduction chamber 13 having a triangular cross section in a direction in which a longitudinal section gradually narrows.
[0065]
Reference numeral 14 denotes a heater, which may be provided on the outer periphery of the peripheral wall of the introduction hole 12 and the introduction chamber 13 by a heating means such as an electric heater. However, in the embodiment, the heater is provided in the peripheral wall in that the heating effect is excellent. The extruded dough 79 flowing through the introduction hole 12 and the introduction chamber 13 is heated and kept warm to maintain the fluidity of the extruded dough 79.
[0066]
A vertical cross section in the width direction of the forming die 10 has an elongated rectangular cross section with a width of 910 mm and a height of 12 mm, and the distance from the inlet of the forming chamber 22 to the die outlet 23 (the distance in the extrusion direction of the forming unit 21) is 500 mm.
[0067]
A sheet 24 made of a fluororesin having a thickness of 0.25 mm is attached to the inner walls of the molding chamber 22 on the four sides of the upper, lower, left and right sides. Alternatively, fluorocarbon resin can be directly coated on the inner walls of the upper, lower, left and right sides of the molding chamber 22. However, the fluorocarbon resin is easily exchangeable, is easily coated with fluorocarbon resin, and has high durability. It is particularly preferable to attach a resin sheet 24.
[0068]
Reference numeral 25 denotes a cooling pipe, which is an example of a cooling means for cooling the forming part 11 of the forming die 10. The extruded fabric 79 in the molding chamber 22 is cooled by supplying cooling water such as water at room temperature or water or oil up to about 70 to 80 ° C. as a cooling medium into the cooling pipe 25.
[0069]
As shown in FIG. 7, a guide plate 15 is a plate having a thickness of 7 mm which forms a symmetrical trapezoidal shape with a short side of about 200 mm, a long side of about 850 mm, and a height of about 100 mm as shown in FIG. A sheet made of a fluororesin such as Teflon having a thickness of 0.1 to 0.5 mm is attached to the entire outer surface. The outer surface of the guide plate 15 may be directly coated with a fluororesin. The method of attaching a fluororesin sheet or coating the fluororesin is performed by the sheet 24 provided in the molding chamber 22 of the molding die 10 described above. Is the same as The guide plate 15 is positioned at the center of the introduction hole 12a having a height of 12 mm and a width of 900 mm so as to have an interval of 25 mm at both ends in the width direction of the introduction hole 12a. The edge is positioned so as to have a substantially parallel interval to the rear end wall surface of the introduction hole 12a, and the guide plate 15 is fixed to the lower surface of the introduction hole 12a with four bolts 27 on the forming die 10a. Therefore, a gap of 5 mm is formed between the upper surface of the guide plate 15 and the upper surface of the introduction hole 12a.
[0070]
The guide plate 15 is formed such that its thickness is 70% or less of the height of the introduction hole 12a in accordance with the height of the introduction hole 12a, and the width of the guide plate 15 is about 70% of the width of the introduction hole 12a. Preferably, it is formed to have a length of up to 95%.
[0071]
In addition, the guide plate 15 can be positioned substantially at the center in the height direction of the introduction hole 12a so that the upper and lower surfaces of the guide plate 15 are provided with the same gap as the upper and lower surfaces of the introduction hole 12a. If the guide plate 15 of the present embodiment is positioned substantially at the center in the height direction of the introduction hole 12a, the center of the introduction hole 12a in the height direction is formed so as to form a gap of 2.5 mm vertically in the height direction. The guide plate 15 is screwed and fixed to the forming die 10a with four stepped pins.
[0072]
When the extruded dough 79 is heated and maintained in the introduction section 11 to maintain the fluidity and maintain a good kneading state, and when the guide plate 15 is provided, the extruded dough 79 is extruded by the guide plate in the introduction section 11 depending on the raw material. In the extrusion direction, the material 79 is prevented from undergoing different linear expansions at the center portion and the end portions, thereby preventing the molecular orientation from being different, achieving uniform linear expansion, controlling the molecular orientation, and forming the molding chamber of the forming portion 21. 22 and is extruded at a uniform density. Since the inner wall surface of the molding chamber 22 is coated with a fluororesin sheet 24 having a small coefficient of friction or coated with a fluororesin, the cellulosic crushed material in the extruded fabric 79 passing through the inner wall surface receives a large resistance. It is extruded at a relatively low temperature while maintaining a uniform and high-density kneading state. In the process of being extruded in the molding chamber 22, the extruded material 79 is gradually cooled and cooled by a cooling medium such as water or oil at room temperature to 60 ° C. to 90 ° C. to form the molded plate 29. Since the fluororesin has a lower coefficient of thermal conductivity than metal, the extruded dough 79 is gradually cooled, the distortion due to cooling is reduced, and a wood composite plate as a molded plate 29 as a uniform and high-density product with less distortion is formed. You.
[0073]
8 and 9, a bearing 34 a for bearing both ends of the shaft of the three free pinch rollers 31 b is fixed to a bearing fixing frame 36, respectively, and a gear 116 provided with the fixed pinch roller 31 a on each shaft; The input shaft of the powder brake 115 is connected to the shaft of one of the three fixed pinch rollers 31a in cooperation with the gear 117 meshing with the gear 116. The powder brake 115 is a so-called electromagnetic brake, and can finely adjust the friction torque electrically.
[0074]
Further, a frame 114 is erected on the bearing fixing frame 36, and 1192 block-shaped guide members provided with guide grooves on the wall surface of the frame 114 are substantially parallel to each other with the axial direction of the guide member 119 being oriented in the vertical direction. , And bearings 34b for bearing both ends of the shafts of the three free pinch rollers 31b are provided movably up and down along the guide grooves of the guide body 119, and the bearings 34b are respectively provided on the upper surface of the frame 114. The three air cylinders 118 are connected to the tips of the rods.
[0075]
Therefore, by the operation of the cylinder 118, the three free pinch rollers 31b are each pressed against the fixed pinch roller 31a via the forming plate 29, and the axis of one fixed pinch roller 31a among the three fixed pinch rollers 31a is pressed. The rotation of the pinch roller 31a is suppressed by the powder brake 115, and the gear 116 provided on the shaft of the fixed pinch roller 31a is connected to the gears 116, 116 provided on the shafts of the other two fixed pinch rollers 31a, 31a via the gears 117, 117. The three pinch rollers 31a have the same rotation suppressing force due to the friction torque of the powder brake 115.
[0076]
Incidentally, the friction torque for suppressing the rotation of the fixed pinch roller 31a by the powder brake 115 is adjusted by the thickness of the forming plate 29 to be formed.
[0077]
Therefore, the friction torque of the powder brake 115 serves as a suppressing force against the pushing force of the forming plate 29, and makes the extruded material 79 in the introduction portion 11 of the forming dies 10 and 10a more dense and uniform. The extruded dough 79 having the density is advanced by the extruding force of the extruded dough 79 by the extruder 70 against the restraining force of the brake means 30a, and cooled in the forming chamber 22 to form the formed plate 29. The forming plate 29 advances while rotating the fixed pinch roller 31a and the free pinch roller 31b against the restraining force of the powder brake 115.
[0078]
The above-described suppressing force is applied to the extruded dough 79 in the forming part 21 and the introduction part 11 via the forming plate 29 by giving a resistance to the extruding force of the extruded dough 79 in the forming chamber 22 applied by the extruder. As compared with the case where the suppressing force is not applied to the forming plate 29 as described above, the entire extruded material 79 in the forming chamber 22 has a further uniform and high density. Therefore, a more uniform and high-density woody synthetic board containing a large amount of cellulosic crushed material is formed.
[0079]
Thereafter, the wood composite board, which is the molded board 29 as the product, is cut into a desired length by a cutting machine such as a cutter, a shearing machine or a sawing machine. A cutting machine such as a cutter is used for a thin molded plate 29, and a cutting machine such as a shearing machine or a sawing machine is used for a thick molded plate 29 of 12 mm or the like.
[0080]
[Table 1]

[0081]
A wood composite board W: 910 mm and H: 12 mm, which is the molded board 29 as the above product, was cut into 1820 mm pieces by a saw to obtain a wood composite board used as a beige cocrete panel weighing 18 kg. The wooden composite board having a thickness of about 10 to 12 mm is also used for other purposes such as interior and exterior boards for vehicles, furniture materials such as desks, tables, cupboards, and the like.
[0082]
In addition, by setting the height of the forming die 10 to 20 to 30 mm, a wooden composite board having a thickness of 20 to 30 mm is formed, and this wooden composite board is used as a floorboard or a board for other uses. Therefore, the thickness of the wood composite board to be formed is not limited to the above embodiment.
[0083]
[Table 2]

[0084]
A woody synthetic board W: 910 mm and H: 3 mm, which is the molded board 29 as the above product, is cut at every 1820 mm by shearing to obtain a woody synthetic board weighing 4.5 kg.
[0085]
Such a thin plate is a material for a wide range of usage purposes as various building materials, furniture materials, equipment parts and the like. For example, the above-mentioned thin wooden synthetic board is used as a building material such as a decorative board for interior decoration of a house, or processed into a size of about 300 mm square to be used as a floor material such as a flooring block. Furthermore, it is used as an interior material inside a car, for example, as a decorative panel around a meter panel in a driver's seat, a decorative panel around a transmission, and a decorative panel on other wall surfaces in a vehicle, to obtain a sense of quality. Can be. As a device part, it is used as a box panel of an electric device or the like or a decorative plate of another device.
[0086]
In addition, when rigidity is not required depending on the use, it is not necessary to mix and add the above-mentioned virgin hard PVC.
[0087]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
[0088]
By relatively simple and easy means, from waste agricultural film as a resin molded article to be treated only by impact attrition, pesticides, mud, soil, sand, metal, agricultural products (leaves, stems, etc.), glass fragments, Deposits such as dust are separated and removed, and the particles are efficiently granulated as a resin material sized to a predetermined particle size range and made into a material so that it can be reused.
[0089]
Therefore, a large amount of water required for the water washing treatment of the waste agricultural film, which has been conventionally performed, and a large amount of equipment for the drying treatment are not required, thereby contributing to resource saving.
[0090]
In particular, it is possible to prevent the river from being polluted by the wastewater from the water washing, and it is possible to reduce the cost of the equipment and the operating cost for the purification treatment of the wastewater.
[0091]
The extruded fabric is extruded into a molding part of a molding die in which a sheet of fluororesin is stuck on the inner wall surface or coated with fluororesin and molded to a predetermined thickness and cooled in the molding part. , There was a slow cooling effect, and as a result, distortion generated when the extruded dough was cooled could be reduced. Therefore, it was possible to form a high-quality wood composite board with little internal residual stress that does not require correction such as correcting the distortion of the formed board with a correction roll or the like.
[0092]
The density of the extruded material in the molding part of the molding die was increased by adding a suppressing force against the extrusion force of the molding plate to the molding plate extruded from the molding die. Could be extruded.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a system of processing steps showing, in principle and schematically, an outline of a case in which a first embodiment of a method for collecting and granulating waste agricultural film, which is an example of a processing target of the present invention, is applied. FIG.
FIG. 2 is an overall perspective view showing a main part of a cutter mill (crushing means) used in the embodiment of the present invention.
FIG. 3 is a longitudinal sectional view schematically showing a schematic configuration of a polishing and sizing apparatus used in the method of the embodiment.
FIG. 4 is a front view for explaining a polishing and sizing operation in FIG. 3;
FIG. 5 is an overall front view showing a cross section of a main part of an extruder used in an embodiment of the present invention.
FIG. 6 is a front view showing a vertical section of a forming die according to an example of the present invention.
FIG. 7 is a plan view showing a cross section of a main part of a forming die according to an example of the present invention.
FIG. 8 is a plan view showing a cross section of a main part of the brake means according to the embodiment of the present invention.
FIG. 9 is a vertical sectional view taken along line NN of FIG. 8;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Forming die 11 Introducing part 12 Introducing hole 13 Introducing chamber 14 Heater 15 Guide plate 16 Screen part 17 Adapter 18 Inlet 19 Extrusion die 21 Molding part 22 Molding chamber 23 Die outlet 24 Sheet (of fluororesin)
25 Cooling pipe 29 Forming plate 30 Brake means 31a Fixed pinch roller 31b Free pinch rollers 34, 34a, 34b Bearing 36 Bearing fixed frame 70 Extruder 71 Screw 72 Gear reducer 73 Hopper 74 Barrel 75 Band heater 76 Screen 77 Adapter 78 Extrusion die 79 Extruded dough 81 Crushed piece 82 Piece to be processed 110 Crusher 114 Frame 115 Powder brake 116 Gear 117 Gear 118 Cylinder 119 Guide body 120 Cutter mill 121 Cutter mill main body 122 Lid 123 Input port 124 Cutter support 125 Rotary blade 126 Fixed blade 127 Input chamber 128 Crushing room 129 Screen 130 Polishing and sizing machine (pin mill)
131 Fixed disk 132 Supply inlet 133 Fixed end plate 134 Fixed pin 135 Peripheral side plate 141 Movable disk 142 Rotating horizontal shaft 143 Bearing 144 Movable pin 151 Sieve mesh 152 Outlet 153 Outlet 154 Plug valve 155 Polishing / granulation space 156 Drainage space 158 blower

Claims (10)

A method for separating adhering matter from a waste resin molded product and recovering a resin material,
The process is a waste agricultural film, a step of coarsely crushing this waste agricultural film into a plurality of small pieces to be processed,
Said resin material together with said relative granulated by individual fragments to be processed by adding a collision撃摩striking force to separate the to the resin material deposits comminuted adhering to the fragments to be processed deposits and sieved to materials of it has been recovered resin material with at least comprising recovering and granulating method of waste resin molded article and a step of. A method for separating adhering matter from a waste resin molded product and recovering a resin material,
The processing target is a waste agricultural film, a step of crushing the waste agricultural film into a plurality of crushed pieces,
A step of coarsely crushing the crushed pieces into a plurality of small pieces to be treated,
Said resin material together with said relative granulated by individual fragments to be processed by adding a collision撃摩striking force to separate the to the resin material deposits comminuted adhering to the fragments to be processed deposits and process and, and the separated deposit at any time including at least collecting and granulation process of the waste resin molded article and removing the to sized to materials of have been recovered resin material. Adding opposition撃摩striking force with respect crushed by individual fragments to be processed, the said resin material integer with comminuted deposits adhering to the fragments to be processed is separated into a resin material deposits and 3. The method for collecting and granulating a waste resin molded product according to claim 1, wherein the step of forming a recovered resin material that has been granulated into a material is repeated a plurality of times. An apparatus for separating adhering matter from a waste resin molded product and recovering a resin material,
The processing target is a waste agricultural film, and a crushing means for crushing the waste agricultural film into a plurality of small pieces to be processed,
Fixed side separation, classification, and sizing means on a fixed disk having a central portion communicating with the supply inlet of the small piece to be processed, and sequentially mounting each fixed pin on a plurality of rotation trajectories,
Movable side separation / classification / granulation means on a movable disk provided rotatably opposed to the fixed disk, wherein each movable pin is sequentially implanted on a plurality of rotation trajectories different from each of the fixed pins. When,
Classification means communicating with the discharge port for discharging the separated adhered matter at the outer peripheral portion of the combination of each fixed pin and each movable pin, and take-out means for taking out the recovered resin material having a desired particle size or more to the take-out port. Prepare,
A separation / classification / grain sizing means configured to separate and classify the resin material and the deposits by the impact crushing force between the fixed pins and the movable pins, and to size the resin material. An apparatus for collecting and granulating waste resin molded products. An apparatus for separating adhering matter from a waste resin molded product and recovering a resin material,
The processing target is a waste agricultural film, and a crushing means for crushing the waste agricultural film into a plurality of crushed pieces,
Means for coarsely crushing the crushed pieces into a plurality of small pieces to be treated,
Fixed-side polishing on a fixed disk having a central portion communicated with the supply input port of the small piece to be processed, and each fixed pin is sequentially planted on a plurality of rotation trajectories,
On a movable disk provided rotatably opposite to the fixed disk, movable-side polishing, in which each movable pin is sequentially implanted on a plurality of rotation trajectories different from each of the fixed pins, a sizing means,
Classification means, which is provided on the outer periphery of the combination of each fixed pin and each movable pin, and communicates with a discharge port for arbitrarily discharging deposits separated to a desired particle size or less, and a discharge port for collecting a collected resin material having a desired particle size or more Extraction means for extracting
Between each of the fixed pins and each of the movable pins, to separate and classify the resin material and the attached matter by the impact grinding force, and to grind the resin material, and to classify the particle size and separation, classifying and sizing means. An apparatus for collecting and granulating waste resin molded products, comprising: The apparatus for collecting and granulating a waste resin molded product according to claim 4 or 5, wherein the separation / classification / granulation means communicates with the discharge port and the supply port. To the recovered resin material 25～80Wt% obtained by the method of claim 1 any one of claims, cellulose crushed under an average particle size of 20 mesh or less and within 15 wt% moisture content 20 75 wt% is mixed, heated, kneaded, extruded with a screw into a forming die, and the extruded dough is extruded into a forming portion of a forming die in which a fluororesin sheet is stuck on the inner wall surface or a fluororesin is coated, and then extruded. molded into thick and slowly cooled in the molding section with extrusion, characterized in that to increase the density of the extruded dough in the forming section by adding a restraining force counteracting the extrusion force of the molded plate waste A method for producing a synthetic wood board using agricultural film as a raw material . With respect to 25 to 80% by weight of the recovered resin material, 20 to 75% by weight of a cellulosic crushed material having an average particle size of 20 mesh or less with no more than a plasticizer was mixed, and the mixture was heated and kneaded. A method for producing a woody synthetic board using the waste agricultural film according to claim 7 as a raw material . The recovered resin material and 20 to 40 wt% of soft vinyl chloride, virgin hard vinyl chloride 10 to 30 wt%, and 15 wt% or more in the average particle size 80 wood flour 40～60Wt% below the mesh moisture content A method for producing a synthetic wood board using the waste agricultural film according to claim 7 as a raw material . The recovered resin material with respect to 15 wt% or less in the average particle size of 150 mesh or less of wood flour 40～60Wt% moisture content consists of polyethylene, Haino of claim 7, wherein a mixture 10 to 60 wt% of polyethylene A method for producing a wood composite board using a film as a raw material .

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